[OpenMP] Allow negative lower bound in array sections based on pointers
OpenMP 4.5 removed the restriction that array section lower bound must be non negative.
This change is to allow negative values for array section based on pointers.
For array section based on array type there is still a restriction: "The array section must be a subset of the original array."
Patch by David S.
Differential Revision: https://reviews.llvm.org/D22481
llvm-svn: 276177
diff --git a/clang/test/OpenMP/task_depend_messages.cpp b/clang/test/OpenMP/task_depend_messages.cpp
index 39bf4847..576738c 100644
--- a/clang/test/OpenMP/task_depend_messages.cpp
+++ b/clang/test/OpenMP/task_depend_messages.cpp
@@ -43,7 +43,7 @@
#pragma omp task depend (in : argv[argc: // expected-error {{expected expression}} expected-error {{expected ']'}} expected-error {{expected ')'}} expected-note {{to match this '['}} expected-note {{to match this '('}}
#pragma omp task depend (in : argv[argc:argc] // expected-error {{expected ')'}} expected-note {{to match this '('}}
#pragma omp task depend (in : argv[0:-1]) // expected-error {{section length is evaluated to a negative value -1}}
- #pragma omp task depend (in : argv[-1:0]) // expected-error {{section lower bound is evaluated to a negative value -1}}
+ #pragma omp task depend (in : argv[-1:0])
#pragma omp task depend (in : argv[:]) // expected-error {{section length is unspecified and cannot be inferred because subscripted value is not an array}}
#pragma omp task depend (in : argv[3:4:1]) // expected-error {{expected ']'}} expected-note {{to match this '['}}
#pragma omp task depend(in:a[0:1]) // expected-error {{subscripted value is not an array or pointer}}